diff --git a/code/requirements.txt b/code/requirements.txt
index ad63fef..6c492bd 100644
--- a/code/requirements.txt
+++ b/code/requirements.txt
@@ -82,7 +82,7 @@ mpmath==0.19
 msgpack-python==0.4.8
 multipledispatch==0.4.9
 navigator-updater==0.1.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==1.11
 nltk==3.4.5